Pyrex "Early American" Cinderella Mixing Bowls

This is a set of three Pyrex mixing bowls. Large white bowl is 2 1/2 Qt. Medium bowl is 1 1/2 Qt and the little one is 1 1/2 pint. Any scratches are very minor. These bowls were made in the 1960's. There is a black mark above the eagles wing on the large white bowl. They look like scuff marks to me.